JP2020025057A - Electrical device - Google Patents

Electrical device Download PDF

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JP2020025057A
JP2020025057A JP2018149725A JP2018149725A JP2020025057A JP 2020025057 A JP2020025057 A JP 2020025057A JP 2018149725 A JP2018149725 A JP 2018149725A JP 2018149725 A JP2018149725 A JP 2018149725A JP 2020025057 A JP2020025057 A JP 2020025057A
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opening
cover
housing body
groove
flange
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JP7056456B2 (en
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啓介 結城
Keisuke Yuki
啓介 結城
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

To provide a technique for removing a cover of an electrical device that includes the cover, a step formed in a side face of a housing main body, and an opening formed for connecting a connector to the step.SOLUTION: The electrical device has a housing main body 10 accommodating electric components, and a cover 20 that closes an opening in the housing main body 10. The housing main body 10 has a step 12 formed in a side face 11. The step is formed such that an upper side of the step 12 in the side face is more shifted to the center of the housing main body 10 than a lower side of the step 12. The step 12 has an opening 13, formed therein, to which a connector is to be connected. Around the opening 13 is formed a groove 14 leading from the side face of the housing main body 10, which is below the step 12, to the opening 13. At an edge of the cover 20 is formed a flange 21 extending downward along the side face 12 of the housing main body 10. The flange 21 and the groove 14 are positioned on a plane orthogonal to the side face 11 of the housing.SELECTED DRAWING: Figure 4

Description

本明細書が開示する技術は、電気機器に関する。特に、電気機器の筐体本体の側面に段差が設けられているとともに、その段差にコネクタを取り付ける開口が設けられている電気機器に関する。   The technology disclosed in this specification relates to electric devices. In particular, the present invention relates to an electric device in which a step is provided on a side surface of a housing main body of the electric device and an opening for attaching a connector is provided in the step.

特許文献１には、筐体本体のカバーを外し易くする工夫が施された電気機器が開示されている。特許文献１に開示された電気機器の筐体本体には、その上部開口を覆うカバーの縁に側方へ延びる締結部が設けられているとともに、締結部の先端から筐体の側面に沿って下方へ延びる延出部が設けられている。カバーを取り外す際、筐体本体の側面と延出部の間に工具を差し入れ、差し入れた箇所を起点にして工具の下端を上方へ回転させることでカバーを容易に外すことができる。   Patent Literature 1 discloses an electric device that is devised so that a cover of a housing body can be easily removed. The housing body of the electric device disclosed in Patent Document 1 is provided with a fastening portion extending laterally at an edge of a cover covering an upper opening thereof, and extends along a side surface of the housing from a tip of the fastening portion. An extension extending downward is provided. When removing the cover, the cover can be easily removed by inserting a tool between the side surface of the housing body and the extending portion, and rotating the lower end of the tool upward starting from the inserted portion.

また、特許文献２には、筐体の側面にコネクタが接続されている電気機器が開示されている。   Patent Document 2 discloses an electric device in which a connector is connected to a side surface of a housing.

特開２０１６−０８２０００号公報JP-A-2006-082000 特開２０１５−２０４６８８号公報JP 2015-204688 A

本明細書は、筐体本体の側面に段差が設けられているとともに、その段差にコネクタを接続する開口が設けられている電気機器において、カバーを外し易くする技術を提供する。   The present specification provides a technique for facilitating removal of a cover in an electric device in which a step is provided on a side surface of a housing body and an opening for connecting a connector is provided on the step.

本明細書が開示する電気機器は、電気部品を収容している筐体本体と、筐体本体の上部開口を塞ぐカバーを備えている。筐体本体には、側面に段差が設けられている。その段差は、側面の段差の上側が段差の下側よりも筐体本体の中心側にずれるように設けられている。また、その段差（上を向いている段差面）に、コネクタを取り付ける開口が設けられている。開口の周囲に、段差の下側の筐体本体の側面から開口まで通じる溝が設けられている。また、カバーの縁には、筐体本体の側面に沿って下方へ延びるフランジが設けられている。フランジと溝は、筐体の側面に直交する平面上に位置している。   The electric device disclosed in this specification includes a housing main body that houses electric components, and a cover that closes an upper opening of the housing main body. A step is provided on the side surface of the housing body. The step is provided such that the upper side of the step on the side surface is shifted to the center side of the housing body more than the lower side of the step. Moreover, its stepped (step surface facing upward), the opening for attaching the connector is provided. A groove is provided around the opening and extends from the side surface of the housing body below the step to the opening. Further, a flange extending downward along the side surface of the housing main body is provided at an edge of the cover. The flange and the groove are located on a plane orthogonal to the side surface of the housing.

上記の構造によれば、ドライバなどの工具の側部を溝に当接させつつ先端をフランジと筐体本体の側面との間に差し入れ、差し入れた箇所を起点にして工具の下端を回転させることでカバーを容易に外すことができる。工具の側部を溝に当接させることで、溝を設けない場合と比較して、筐体本体の側面に近い位置から工具の先端をフランジの内側に差し入れることができる。工具が差し入れ易くなるとともに、カバーを外し易くなる。   According to the above structure, the tip of the tool is inserted between the flange and the side surface of the housing body while the side of the tool such as a screwdriver is in contact with the groove, and the lower end of the tool is rotated starting from the inserted portion. The cover can be easily removed with. By contacting the side portion of the tool with the groove, the tip of the tool can be inserted inside the flange from a position closer to the side surface of the housing body as compared with a case where no groove is provided. It is easier to insert tools and to remove the cover.

本明細書が開示する技術の詳細とさらなる改良は以下の「発明を実施するための形態」にて説明する。   The details and further improvements of the technology disclosed in this specification will be described in the following “Detailed description of the invention”.

実施例の電気機器の斜視図である。It is a perspective view of the electric equipment of an example. 図１の符号IIが示す囲み範囲の拡大図である。FIG. 2 is an enlarged view of an enclosing range indicated by reference numeral II in FIG. 1. 段差の周辺を筐体側面の法線方向からみた図である。It is the figure which looked at the circumference of a step from the normal direction of the side of a case. 図３のIV−IV線に沿った断面図である。FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3. 図４と同じ断面であってコネクタを取り付けた状態の断面図である。FIG. 5 is a sectional view showing the same section as that of FIG. 4 and in a state where a connector is attached.

図面を参照して実施例の電気機器を説明する。実施例の電気機器は、電気自動車に搭載される電力変換器２である。電力変換器２は、電源の直流電力を走行用モータの駆動電力に変換するデバイスである。電力変換器２は、走行用のモータを内蔵したトランスアクスルの上に固定される。   An electric device according to an embodiment will be described with reference to the drawings. The electric device of the embodiment is a power converter 2 mounted on an electric vehicle. The power converter 2 is a device that converts DC power of a power supply into driving power of a traveling motor. The power converter 2 is fixed on a transaxle having a built-in motor for traveling.

電力変換器２の筐体本体１０には、様々な電気部品が収容されている。筐体本体１０の上部の開口１０ａ（図４に図示）は、カバー２０で塞がれる。カバー２０は、複数のボルト９２で筐体本体１０に固定される。筐体本体１０はアルミニウムで作られており、カバー２０は鉄板で作られている。図中の座標系の＋Ｚ方向が「上」に相当する。   Various electric components are housed in the housing body 10 of the power converter 2. The upper opening 10 a (shown in FIG. 4) of the housing body 10 is closed by the cover 20. The cover 20 is fixed to the housing body 10 with a plurality of bolts 92. The housing body 10 is made of aluminum, and the cover 20 is made of an iron plate. The + Z direction of the coordinate system in the figure corresponds to “up”.

筐体本体１０の側面１１には、走行用のフロントモータに電力を供給するパワーケーブルのコネクタを接続するための開口１９が設けられている。また、筐体本体１０の側面１１には、段差１２が設けられており、その段差面１２ａには、走行用のリアモータに電力を供給するパワーケーブル４２のコネクタ４０を接続するための開口１３が設けられている。コネクタ４０の先端には貫通孔を有するタブ４１が設けられており、コネクタ４０は、タブ４１の貫通孔に挿通されるボルト９１で筐体本体１０に固定される。   An opening 19 for connecting a connector of a power cable for supplying power to a traveling front motor is provided on a side surface 11 of the housing body 10. Further, a step 12 is provided on the side surface 11 of the housing body 10, and an opening 13 for connecting a connector 40 of a power cable 42 for supplying electric power to the rear motor for traveling is provided on the step surface 12 a. Is provided. A tab 41 having a through hole is provided at the tip of the connector 40, and the connector 40 is fixed to the housing body 10 with a bolt 91 inserted into the through hole of the tab 41.

段差１２について説明を補足する。図２に、図１の符号IIが示す囲みの範囲の拡大図を示す。段差１２は、側面１１の段差１２の上側部分１１ｂが、側面１１の段差１２の下側部分１１ａよりも筐体本体１０の中心側（図中の座標系の−Ｙ側）にずれているように設けられている。別言すれば、段差１２は、段差面１２ａが上を向くように設けられている。さらに別言すれば、段差１２は、段差１２よりも下側が上側よりも突出する形状である。   The description of the step 12 will be supplemented. FIG. 2 is an enlarged view of a range indicated by reference numeral II in FIG. The step 12 is such that the upper portion 11b of the step 12 on the side surface 11 is shifted toward the center of the housing body 10 (−Y side of the coordinate system in the drawing) from the lower portion 11a of the step 12 on the side surface 11. It is provided to. In other words, the step 12 is provided such that the step surface 12a faces upward. In other words, the step 12 has a shape in which the lower side of the step 12 protrudes from the upper side.

段差面１２ａの開口１３の周囲に溝１４が設けられている。溝１４は、筐体本体１０の側面１１から開口１３まで通じている。さらに、カバー２０には、その縁から側面１１に沿って下方へ延びるフランジ２１が設けられている。フランジ２１には切欠２２が設けられている。   A groove 14 is provided around the opening 13 of the step surface 12a. The groove 14 extends from the side surface 11 of the housing body 10 to the opening 13. Further, the cover 20 is provided with a flange 21 extending downward from the edge along the side surface 11. A notch 22 is provided in the flange 21.

溝１４とフランジ２１の関係とそれらの機能について説明する。図３に、筐体本体１０の側面１１をその法線方向（図中の座標系のＹ方向）からみた図を示す。図４に、図３のIV−IV線に沿った断面図を示す。図３と図４から理解されるように、溝１４とフランジ２１は、図中の座標系のＹＺ平面上に位置する。別言すれば、溝１４とフランジ２１は、筐体本体１０の側面１１に直交する平面上に位置している。より詳しくは、溝１４とフランジ２１は、筐体本体１０の側面１１及び底面の夫々と直交する平面上に位置している。   The relationship between the groove 14 and the flange 21 and their functions will be described. FIG. 3 is a diagram showing the side surface 11 of the housing body 10 viewed from the normal direction (Y direction of the coordinate system in the figure). FIG. 4 shows a cross-sectional view along the line IV-IV in FIG. As understood from FIGS. 3 and 4, the groove 14 and the flange 21 are located on the YZ plane of the coordinate system in the figure. In other words, the groove 14 and the flange 21 are located on a plane orthogonal to the side surface 11 of the housing body 10. More specifically, the groove 14 and the flange 21 are located on a plane orthogonal to each of the side surface 11 and the bottom surface of the housing body 10.

図３と図４の仮想線は、ドライバ５０である。カバー２０を筐体本体１０から外すのにドライバ５０を用いる。カバー２０と筐体本体１０の開口周囲との間は、液状ガスケット（ＦＩＰＧ：Formed In Place Gasket）２５によって封止されている。液状ガスケット２５は、筐体本体１０の開口１０ａの周囲とカバー２０の夫々に強く粘着する。従って、ボルト９２を外しただけではカバー２０は容易には筐体本体１０から引きはがすことができない。そこで、ドライバ５０の先端をカバー２０のフランジ２１と筐体本体１０の側面１１の間に差し入れ、差し入れた箇所を起点にドライバ５０を上方へ回転させる。てこの原理でフランジ２１を上方へ強く押し上げる力が働き、液状ガスケット２５を引き剥がし、カバー２０を筐体本体１０から離脱させることができる。   The virtual line in FIGS. 3 and 4 is the driver 50. The driver 50 is used to remove the cover 20 from the housing body 10. A liquid gasket (FIPG: Formed In Place Gasket) 25 is sealed between the cover 20 and the periphery of the opening of the housing body 10. The liquid gasket 25 strongly adheres to the periphery of the opening 10 a of the housing body 10 and to the cover 20. Therefore, the cover 20 cannot be easily detached from the housing body 10 simply by removing the bolt 92. Then, the tip of the driver 50 is inserted between the flange 21 of the cover 20 and the side surface 11 of the housing body 10, and the driver 50 is rotated upward starting from the inserted point. A force that pushes the flange 21 upward strongly by the principle of leverage acts, whereby the liquid gasket 25 is peeled off, and the cover 20 can be detached from the housing body 10.

図４に示されているように、ドライバ５０の側部を溝１４の内側に当てることで、溝１４が設けられていない場合と比較して、ドライバ５０と側面１１のなす角度が小さくなる。別言すれば、ドライバ５０の側部を溝１４の内側に当てることで、ドライバ５０の先端をより側面１１に近い位置からフランジ２１と側面１１の間に差し入れることができる。溝１４によって、ドライバ５０の先端を差し入れ易くなる。さらに、ドライバ５０と側面１１とのなす角度が小さいほど、ドライバ５０を回転させたときにフランジ２１を上方へ押し上げる力が強くなり、カバー２０が外れ易くなる。カバー２０を外すための工具はドライバ５０に限定されない、尖った先端を有する棒状の工具であればよい。   As shown in FIG. 4, by applying the side portion of the driver 50 to the inside of the groove 14, the angle formed between the driver 50 and the side surface 11 becomes smaller as compared with the case where the groove 14 is not provided. In other words, by applying the side portion of the driver 50 to the inside of the groove 14, the tip of the driver 50 can be inserted between the flange 21 and the side surface 11 from a position closer to the side surface 11. The groove 14 makes it easier to insert the tip of the driver 50. Further, as the angle between the driver 50 and the side 11 is small, the flange 21 force becomes strong to push upward when rotating the driver 50, easily cover 20 is disengaged. Tool for removing the cover 20 is not limited to the driver 50 may be a rod-shaped tool having a pointed tip.

図５に、図４と同じ断面であって、コネクタ４０（図１参照）を取り付けた状態の断面図を示す。なお、コネクタ４０の内部構造については図示を省略した。図５によく表れているように、フランジ２１が下方へ延びていることによって、コネクタ４０とフランジ２１は干渉しない。すなわち、筐体本体１０の形状に影響を与えずにフランジ２１を付加することができる。   FIG. 5 is a cross-sectional view showing the same cross section as FIG. 4 and showing a state where the connector 40 (see FIG. 1) is attached. The illustration of the internal structure of the connector 40 is omitted. As shown clearly in FIG. 5, by the flange 21 extends downwardly, the connector 40 and the flange 21 do not interfere. That is, the flange 21 can be added without affecting the shape of the housing body 10.

段差面１２ａにて開口１３の周囲に設けた溝１４は、上記の効果のほか、段差面１２ａ上の水滴を側面１１へ誘導する機能も有する。溝１４は、段差面１２ａの上の水滴を開口１３の中へ滴下させないので、開口１３の内側の電気部品を水滴から保護することができる。   The groove 14 provided around the opening 13 on the step surface 12a has a function of guiding water droplets on the step surface 12a to the side surface 11 in addition to the above-described effects. Since the groove 14 does not allow water droplets on the step surface 12a to drop into the opening 13, the electric components inside the opening 13 can be protected from water droplets.

実施例で説明した技術に関する留意点を述べる。溝１４とフランジ２１は、筐体本体１０の側面１１及び底面の夫々と直交する平面上に位置していることが望ましい。ただし、溝１４とフランジ２１が位置する平面は、筐体本体１０の底面に直交する別の平面に対していくらかの角度を有していてもよい。   Points to keep in mind regarding the technology described in the embodiment will be described. Groove 14 and the flange 21 is preferably positioned on a plane perpendicular to the side surface 11 and bottom surface of each of the housing body 10 s. However, the plane where the groove 14 and the flange 21 are located may have some angle with respect to another plane orthogonal to the bottom surface of the housing body 10.

以上、本発明の具体例を詳細に説明したが、これらは例示に過ぎず、特許請求の範囲を限定するものではない。特許請求の範囲に記載の技術には、以上に例示した具体例を様々に変形、変更したものが含まれる。本明細書または図面に説明した技術要素は、単独であるいは各種の組合せによって技術的有用性を発揮するものであり、出願時請求項記載の組合せに限定されるものではない。また、本明細書または図面に例示した技術は複数目的を同時に達成し得るものであり、そのうちの一つの目的を達成すること自体で技術的有用性を持つものである。   As described above, specific examples of the present invention have been described in detail, but these are merely examples, and do not limit the scope of the claims. The technology described in the claims includes various modifications and alterations of the specific examples illustrated above. The technical elements described in the present specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology illustrated in the present specification or the drawings can simultaneously achieve a plurality of objects, and has technical utility by achieving one of the objects.

２：電力変換器
１０：筐体本体
１０ａ：開口
１１：側面
１２：段差
１２ａ：段差面
１０ａ、１３、１９：開口
１４：溝
２０：カバー
２１：フランジ
２５：液状ガスケット
４０：コネクタ
５０：ドライバ
９１、９２：ボルト 2: power converter 10: housing body 10a: opening 11: side surface 12: step 12a: step surfaces 10a, 13, 19: opening 14: groove 20: cover 21: flange 25: liquid gasket 40: connector 50: driver 91 , 92: bolt

Claims (1)

電気部品を収容している筐体本体と、
前記筐体本体の開口を塞ぐカバーと、
を備えており、
前記筐体本体には、側面に設けられた段差であって前記側面の当該段差の上側が当該段差の下側よりも前記筐体本体の中心側にずれている段差が設けられているとともに、コネクタを取り付ける開口が前記段差に設けられており、
前記開口の周囲に、前記段差の下側の前記側面から前記開口まで通じる溝が設けられており、
前記カバーの縁に前記側面に沿って下方へ延びるフランジが設けられており、前記フランジと前記溝は、前記側面に直交する平面上に位置している、電気機器。 A housing body housing the electrical components,
A cover for closing the opening of the housing body,
Equipped with a,
The housing body is provided with a step that is a step provided on a side surface, and the upper side of the step on the side surface is shifted toward the center side of the housing body from the lower side of the step, An opening for attaching a connector is provided on the step,
Around the opening, a groove is provided from the side surface below the step to the opening,
An electric device, wherein a flange extending downward along the side surface is provided at an edge of the cover, and the flange and the groove are located on a plane orthogonal to the side surface.
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